The following bibliography and index supersedes a previous report, TEI-500, "U.S. Geological Survey Trace Elements and Related Reports Through 1954".

From introduction: This report details the results of a botanical prospecting method to determine the presence of uranium in the Circle Cliffs area.

The following report covers botanical prospecting methods used to search for uranium in the Circle Cliffs area, Garfield County, Utah during 1954 and 1955. This report presents analytical data and much geologic knowledge on the Circle Cliffs area.

A report about the routine fluorimetric procedure of the U.S. Geological Survey for the determination of uranium in the ash of plants

The following report covers an analytical procedure for the determination of uranium(IV) in apatite.

From introduction: "This report is a statement of progress during the six-months period from June 1 to November 30, 1956, on investigations of radioactive materials in the United States and Alaska, undertaken by the U.S. Geological Survey under the sponsorship of the Division of Raw Materials and the Division of Research of the Atomic Energy Commission."

The following report discusses studies in alterations in various kinds of igneous, metamorphic and sedimentary host-bearing rocks that contain uranium-bearing vein deposits in the United States. Most of these rocks have been altered in adjacent to uraniferous veins but some veins are enclosed in fresh, unaltered rock.

The following report covers investigations on the formation of chimney-like ore bodies in the shallow volcanic environments in order to explore the principles involved in the mechanism of transport and exchange of matter and energy in solid rock bodies under conditions of open systems.

The following report covers investigations of uranium and thorium discovered within host minerals in the earth's crust, zircon, sphene, apatite, epidote, and monazite. The object of this investigation has been to obtain an approximate measure of the abundance and distribution of uranium and thorium among these five mineral phases.

Discussing the geology of the Midnite Mine Area, in the Spokane Indian Reservation

A report about how minor- and trace-element content of sulfides associated with uranium ore deposits from sandstone-type deposits have proved that selenium commonly substitutes for sulfur.

From introduction: This bibliography consists of annotations or abstracts of selected reports that pertain to the geology and occurrence of uranium in marine black shales and their metamorphic equivalents in the United States.

Introduction: In this bibliography emphasis is placed on reports dealing with the uranium contents and radioactivity of native bituminous substances rather than on mineralogical and chemical studies of these substances.

Abstract: "The absorption spectra of the complexes of uranium (VI) with four [beta]-diketones were determined under various conditions of pH, concentration of uranium, and alcohol concentration. Under optimum conditions, the maximum molar absorptivity (31,200) is obtained using 2-furoyltri-fluoroacetone. This compares with about 4,000 and 19,000 for the thiocyanate and dibenzoylmethane complexes, respectively."

A bibliography which consists of references to published literature, press releases, speeches, and both open-file and other unclassified reports dealing with uranium, thorium, and radioactive occurrences in several United States states.

A report pertaining to an exploration by the U.S. Geologic Survey in the southern part of the Uravan district for uranium-vanadium deposits. The explored area is in Montrose County, Colorado. The rocks exposed in the area are gently dripping marine and terrestial formations ranging in age from late Paleozoic to late Mesozoic.

"Between April 21, 1949, and August 20, 1955, the U.S. Geological Survey explored the southern part of the Uravan district for uranium-vanadium deposits and to appraise the uranium-vanadium reserves in the area."

Abstract: "The rank coefficient, rs, which involves less computation than the product moment correlation coefficient, r, can be used to indicate the degree of relationship between two elements. The method is applicable in situations where the assumptions underlying normal distribution correlation theory may not be satisfied. Semiquantitative spectrographic analyses can be used to calculate rank correlations between elements because the results are already partly ranked in an analytical report."

The following report covers a broad-scale study of the distribution of elements in the rocks and ores of the Colorado Plateau. Discussed here are the results from semiquantitative spectrographic analyses of approximately 800 samples of rocks and ores that form the principal starting point for the discussion. This paper examines the relevance of the results of the study of the distribution of elements to the special problem of the source or sources of the elements contained in unusual abundance in the sandstone-type uranium ores.

From introduction: The primary object of this work was to aid prospectors and mining men in finding and exploiting new deposits of uranium-bearing ores in the Colorado Plateau region, particularly of those in the Shinarump and Moss Black members of the Chinle formation.

Report discussing a proposed nomenclature of Upper Triassic rocks in southeastern Utah in which two types of strata are lumped together in the Chinle formation and that the Shinarump conglomerate be redefined as the Shinarump member of the Chinle formation.

From introduction: This report details mineral and chemical relations in two uranium-vanadium ores of the Colorado Plateau.

The following report analyzes channel samples from two mines (Mineral Joe No. 1 and Virgin No. 3) on the Colorado Plateau that have been studied in detail both mineralogically and chemically.

Report discussing the U.S. Geological Survey's exploration aimed at locating uranium-vanadium deposits of the Beaver Mesa area. The report provides information regarding the geology of the area, uranium-vanadium deposits, the U.S. Geological Survey's exploration, reserves, and plans/recommendations.